Adobe Reader 8.1.2 has been released, it addresses a number of customer workflow issues and security vulnerabilities while providing more stability, at least that's what Adobe say. <img src=/S/grin.gif border=0 alt=grin width=15 height=15>

Adobe Reader 8.1.2 Release Notes

Those those with Acrobat 8, there is an update to 8.1.2 available by using the built-in Adobe updater.